ah....thanks for that, Lori. I didn't calculate the HRM indeed but rather the SDG.
As for Inu's behavior....there are no clear "end stage" signs for Cushing's. There are many things to consider - time of year, ie is the pup able to go outside in the sunshine as much as before, is it colder/hotter, etc.; are there other health issues in play that may be causing Inu to feel poorly; age related changes; has she started any of the supplements you listed and do any of them cause what you are seeing while the pup adjusts. One thing to consider is that as a pup ages they start to lose their senses - smell, sight, hearing - and those can cause a bit of withdrawal as the normal stimulants that surround them fade away. I have a Pug who is around 12 and over the last few months I often have to wake her for meals...and that is NOT a Pug characteristic! They are furry food vacuums naturally!
She is slowing down and not as interactive as she once was but I am sure it is due to the aging process. She does have some health issues as well, like a seizure disorder, but Cushing's is not one of them. When we have a cush pup we tend to get tunnel vision and credit Cushing's for any and every change we see so keep in mind there could be many other reasons for how Inu is behaving.
You do want to listen to her, tho. You know her best of all and I believe our babies will tell us when they have had enough. But try to relax and consider all that could be in play and see her clearly, not thru the lens' of Cushing's fears - HARD to do at times, I know well. But I also know you are incredibly strong - you have proven that right off the bat with your first post here and by how hard you are fighting to get things to help your baby girl and learn all you can. Inu is very lucky to have you as her mom.
Hugs,
Leslie
PS. My offer of a shipping address still stands, just let me know if I can help with the Anipryl or anything else.